Ratchet bit driver



FIG. 1 is a perspective view of a ratchet driver bit according to my new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a top elevation view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof.

The dash-dash broken lines showing in the views illustrate unclaimed portions of the ratchet driver bit and form no part of the claimed design. The dash-dot-dash lines showing in the views illustrate boundaries of the claimed portions of the ratchet driver bit and form no part of the claimed design. 

CLAIM The ornamental design for a ratchet bit driver, as shown and described. 